Explain the standard method of encryption used by the office

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Simon works in a government office where encrypted messages are regularly received. He knows that an affine cipher is the standard method of encryption used by the office, and has access to the machine which encrypts.

One day, when there is not much work to do, Simon decides to work out the affine function used in the machine. He inputs 1 and the machine outputs 5. He inputs 2 and the machine outputs 19. Show how he uses this to obtain the function.

Attachment:- Assignment-1-SIT281-2013--1-.pdf

Reference no: EM13307454

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